BigRich954RR

iTrader: (1)

hp rating good place to buy from and can you fit one in a new gto ?

Z28/2002

iTrader: (27)

depends on how much you spend, check the sponsors

molsen

Fairly a lot. It depends on the internals. They can take a lot if built right.

BigRich954RR

iTrader: (1)

Right now i got 800RWHP in a 06 GTO thinking about trying to put a th400 in what would be needed? If i turn it up im going for 1000-1200 rwhp

Is the 4l80 the same size as a th400

67camarors

iTrader: (2)

i know many guys that run Super Gas in NHRA that put down that much power and run 9.90s and dont have any issues whatsoever, the 400 is a very stout trans and if it is built well it can be nearly indestructible

EZZZE

iTrader: (14)

Definitely one of the strongest 3 speed autos. Stronger than a th350...or you could go with a powerglide if you're really worried.

Carter01

iTrader: (11)

In the middle of a Th400 swap right now in my 99 Camaro. My understanding is built properly in a full weight car (say 35-3700lbs) they work well up to 800-900. After that it's probably time for the Powerglide. I'm sure many have pushed them harder or less but that's the rule of thumb I'm sticking with.

slow67

iTrader: (2)

Thats for stock hard parts. With billet parts, they will go very far. Ever heard of a turbo-glide? Its a 400 launching in 2nd gear (Some Pro-mods use them).

Carter01

iTrader: (11)

Wow, that's good news to hear. I feel sure I won't ever make enough power to hurt it and if I do I will upgrade to the billet parts. Thanks

FTICONVERTERS

iTrader: (3)

we offer a complete kit to put a th400 in the GTO including the driveshaft, shifter,floor block off plate, Transbrake TH400(several different HP ratings available),converter ,flexplate, bolts,sheild,cooler,braided cooler line kit,filler tube and stick,rearend yoke,crossmember,electronic speed sensor,and wiring harness. Give me a call at 1-866-726-8358 and we can discuss options and pricing. there is a package price break. we offer several different converters as well. www.fticonverters.com and look at the GTO board http://www.ls1gto.com/forums/.. we run these specials from time to time and right now are on our tax return sale till the 15th.

Greg

white3800camaro

iTrader: (6)

My dads got a built TH400 in his 1968 firebird, has about 700rwhp, runs consistant low 10s